AttributeError : 'NoneType' object has no attribute 'symbolLayer'

[achos01]

• QGIS version 2.18.17
• qgis2web version 2.33.1
• Using the option 'Style through rules' in Styles window.

When i try to export a layer into html page with qgis2web i have this error :

qgis2web produced an error:

Traceback (most recent call last):
File "C:/Users/ACH/.qgis2/python/plugins\qgis2web\maindialog.py", line 318, in previewMap
preview_file = self.createPreview()
File "C:/Users/ACH/.qgis2/python/plugins\qgis2web\maindialog.py", line 280, in createPreview
dest_folder=utils.tempFolder()).index_file
File "C:/Users/ACH/.qgis2/python/plugins\qgis2web\olwriter.py", line 89, in write
folder=dest_folder)
File "C:/Users/ACH/.qgis2/python/plugins\qgis2web\olwriter.py", line 128, in writeOL
popup, json, restrictToExtent, extent, feedback, matchCRS)
File "C:/Users/ACH/.qgis2/python/plugins\qgis2web\utils.py", line 180, in exportLayers
iface, extent, precision, crs, optimize)
File "C:/Users/ACH/.qgis2/python/plugins\qgis2web\utils.py", line 194, in exportVector
if is25d(layer, canvas, restrictToExtent, extent):
File "C:/Users/ACH/.qgis2/python/plugins\qgis2web\utils.py", line 448, in is25d
sl1 = sym.symbolLayer(1)
AttributeError: 'NoneType' object has no attribute 'symbolLayer'

Thanks in advance.

[tomchadwin]

Please see my response to another issue here:

#628 (comment)

This is not the same problem, but that answer should help you provide what is needed for someone to be able to debug this issue properly.

[tomchadwin]

I've committed a possible fix to master for #628 which might also fix this issue. Can you test and report back?

[achos01]

I do not know how to solve this problem, can not find the solution anywhere

[tomchadwin]

Please try upgrading to qgis2web 3.0.1, now available in the QGIS plugin manager. Please report back on whether the error still occurs with 3.0.1

[tomchadwin]

Closed without further feedback - comment here and I'll reopen.

[galihalhakim]

i'm using QGIS 3 and still have this error.

AttributeError: 'NoneType' object has no attribute 'symbolLayer'
Traceback (most recent call last):
File "C:/Users/GALIH/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qgis2web\maindialog.py", line 323, in previewMap
preview_file = self.createPreview()
File "C:/Users/GALIH/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qgis2web\maindialog.py", line 286, in createPreview
dest_folder=utils.tempFolder()).index_file
File "C:/Users/GALIH/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qgis2web\leafletWriter.py", line 100, in write
folder=dest_folder)
File "C:/Users/GALIH/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qgis2web\leafletWriter.py", line 187, in writeLeaflet
exp_crs, minify)
File "C:/Users/GALIH/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qgis2web\utils.py", line 234, in exportVector
if is25d(layer, canvas, restrictToExtent, extent):
File "C:/Users/GALIH/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\qgis2web\utils.py", line 490, in is25d
sl1 = sym.symbolLayer(1)
AttributeError: 'NoneType' object has no attribute 'symbolLayer'

[M-Rick]

I am running QGIS 3.10.11 and still have the error as well.

[zoran-cuckovic]

Hello,
I've had the same problem. It was resolved when I removed web layers, Bing Maps in my case. Prehaps some other gost layers may cause the same problem, such as empty memory layers.
Hope this helps.